Temperature Profile and ThermoclineThickness Evaluation ofa Stratified Thermal Energy Storage Tank

Temperature Profile and ThermoclineThickness Evaluation ofa Stratified Thermal Energy Storage Tank
复制标题

分层储热罐的温度分布和温跃层厚度评估

DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
M. Majid
M. Majid
中科院分区：
--
文献类型：
--
作者：
J. Waluyo;M. Majid

文献摘要

被引文献

相似文献

温跃层厚度的测定需要 温度分布的连续轮廓。对于离散温度数据的情况，确定温跃层厚度会出现困难，因为所形成的轮廓不能用于估计温跃层厚度。本文讨论了分层蓄热温跃层厚度制定的实用方法。采用迭代法进行曲线拟合，确定了可表示S曲线的函数 的温度分布。根据功能，温跃层 厚度是利用函数关系来制定的 温度曲线。结果确定了两个功能，可以 表示温度分布的S曲线，即S形剂量 响应（SDR）和四参数 sigmoid（FPS）函数。两者都 观察到函数很好地拟合了温度分布 确定系数大于0.99。基于 配方能够用于的评估 评估分层 TES 的温跃层厚度。的 方法有利于获得温跃层的精确值 厚度。
Determination of thermocline thickness requires a continuous profile of temperature distribution. Difficulty in determining thermocline thickness arises for the case of discrete temperature data, since the profile formed could not be used to estimate the thermocline thickness. This paper discusses a practical method for formulation of thermocline thickness of stratified thermal energy storage. Curve fitting by iterative method was adopted to identify the functions which could represent the S-curve of temperature distribution. Based on the functions, thermocline thickness was formulated using functional relationship of temperature profile. Results identified two functions which could represent S-curve of temperature distribution, namely sigmoid dose response (SDR) and four parameter sigmoid (FPS) functions. Both functions were observed to well fit the temperature distributions having coefficient determination more than 0.99. Based on evaluations the formulations were capable to be utilized for evaluation of thermocline thickness of the stratified TES. The methods offer an advantage to obtain an exact value of thermocline thickness.